Abstract
Polyester (PET) fabric is insecure to use since it melts at 249–290 °C, such molten PET could drip on underlying surfaces or human skin and hence become harmful. The rapidly ignited and flammable materials found in nearby areas might lead to damage life and property of consumers. In this research, the fabric was modified to avoid these disadvantages. Thus we investigate the effect of phosphorylated sol-gel coating material on UV/Ozone pre-modified polyester sample for different periods. The thermogravimetric analysis (TGA) and ignition properties (UL/94) were studied for all samples under test. The samples with phosphorylated sol-gel material improved the flammability behavior. Also, the use of UV/Ozone prior this modification activate the surface of polyester, thus improved the stability of the flame retardant.
Highlights
PET is a synthetic polymer namely polyethylene terephthalate
Polyester (PET) fabric is insecure to use since it melts at 249–290 °C, such molten PET could drip on underlying surfaces or human skin and becomes harmful
The second way is the addition of flame retardants into PET during processing; and the third way is flame-retardant treatment of PET fabrics
Summary
PET is a synthetic polymer namely polyethylene terephthalate It has many advantages so it is widely used in many fields as: automotive industries, textiles and garments. Its flammability is so danger due to the dripping, smoking and shrinking effects For these reasons, it is necessary to improve the anti-dripping and fire retardant properties of PET. 2.2 Sol-Gel Treatment The coating solutions were prepared by mixing 5 ml methyltrimethoxysilane (95%, Alfa Aesor) and 2.5 ml acetic acid (99%, Tedia) as a catalyst under constant stirring for 10 min at ambient temperature. The studied PET fabric sample was first exposed to UV/Ozone for different irradiation periods ranging from 30 to 125 minutes immersed in the freshly prepared sol-gel solution for 2 min and padded under constant pressure for ~100% uptake. Method (ASTM, 2009) using Shimadzu Universal Tester of (C.R.T)- type S-500 Japan
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